With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
frxPortProtocol
Cisco 90i Port Protocol
1.3.6.1.4.1.1570.1.6.1.1.2
This parameter controls what protocol the channel unit should expect the subscriber to send on the port. 1=Port uses Frame Relay protocol - no encapsulation 2=Port uses PPP protocol - do RFC-1973 encapsulation This parameter can only be changed if frxConfigSrc is set to SNMP.
Back to CISCO-90-MIB MIB page.
IPHost Network monitor allows you to monitor frxPortProtocol on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.